const express = require('express')
let app = express()
app.get('/say',function(req,res){
    console.log('3000端口已被请求');
    let {wd,callback} =req.query
    console.log(wd);
    console.log(callback);
    res.end(`${callback}('不爱你')`)
})
app.listen(3000)
console.log('服务启动');